HP ProDesk 400 G2 Small Form Factor Maintenance And Service Manual page 7

Computer Setup-Security ............................................................................................................... 65
Computer Setup-Power .................................................................................................................. 68
Computer Setup-Advanced ............................................................................................................ 69
Recovering the Configuration Settings ............................................................................................................... 71
6 Troubleshooting without diagnostics ............................................................................................................ 72
Safety and comfort .............................................................................................................................................. 72
Before you call for technical support .................................................................................................................. 72
Helpful hints ........................................................................................................................................................ 73
Solving general problems ................................................................................................................................... 74
Solving power problems ...................................................................................................................................... 78
Solving hard drive problems ............................................................................................................................... 79
Solving media card reader problems .................................................................................................................. 81
Solving display problems .................................................................................................................................... 82
Solving audio problems ....................................................................................................................................... 86
Solving printer problems ..................................................................................................................................... 88
Solving keyboard and mouse problems ............................................................................................................. 89
Solving Hardware Installation Problems ............................................................................................................ 91
Solving Network Problems .................................................................................................................................. 93
Solving memory problems .................................................................................................................................. 97
Solving processor problems ................................................................................................................................ 98
Solving CD-ROM and DVD problems .................................................................................................................... 99
Solving USB flash drive problems ..................................................................................................................... 101
Solving front panel component problems ........................................................................................................ 101
Solving Internet access problems ..................................................................................................................... 102
Solving software problems ............................................................................................................................... 103
7 POST error messages ................................................................................................................................. 105
POST numeric codes and text messages .......................................................................................................... 105
Interpreting POST diagnostic front panel LEDs and audible codes .................................................................. 112
8 Password security and resetting CMOS ........................................................................................................ 115
Resetting the password jumper ........................................................................................................................ 115
Clearing and resetting the CMOS ....................................................................................................................... 116
9 HP PC Hardware Diagnostics ....................................................................................................................... 118
Why run HP PC Hardware Diagnostics .............................................................................................................. 118
How to access and run HP PC Hardware Diagnostics ....................................................................................... 118
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................. 118
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